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Orientation of the ankle joint and subtalar joint axis: Morphology vs dynamics
Knowledge about the orientation of the ankle joint and subtalar joint axis is limited to studies on tarsal morphology and quasistatic studies. Here, we determined the joint axes based on previously gained kinematics during walking.
In the 00's, we were part of a research consortium that used bone pins to monitor kinematics of nine bones of the lower extremity. We also used CT to get 3D models of the bones. We are now interested in using this quite unique data set to determine the orientation and position of joint axes, how those are affected by walking velocity, and how those are related to joint surfaces. So far, we could confirm that the ankle joint acts not like a hinge joint with one single fixed axis of rotation (see Figure 1). In contrast to existing literature relying on in vitro or quasistatic data, however, we observed that during a phase of ankle joint dorsiflexion the axis of rotation was inclined upwards laterally and that in ankle joint plantarflexion the axis turned more medially upwards.
In the 00's, we were part of a research consortium that used bone pins to monitor kinematics of nine bones of the lower extremity. We also used CT to get 3D models of the bones. We are now interested in using this quite unique data set to determine the orientation and position of joint axes, how those are affected by walking velocity, and how those are related to joint surfaces. So far, we could confirm that the ankle joint acts not like a hinge joint with one single fixed axis of rotation (see Figure 1). In contrast to existing literature relying on in vitro or quasistatic data, however, we observed that during a phase of ankle joint dorsiflexion the axis of rotation was inclined upwards laterally and that in ankle joint plantarflexion the axis turned more medially upwards.
- Extract the morphology of the joint surfaces and compare it to existing literature
- Determine the orientation of the subtalar joint axis during walking, fast walking and running
- Visualise axes and bones during stance phase
- Extract the morphology of the joint surfaces and compare it to existing literature - Determine the orientation of the subtalar joint axis during walking, fast walking and running - Visualise axes and bones during stance phase
Unique data set to work with
Impact of data recently published in high-impact journals might be questioned
Unique data set to work with Impact of data recently published in high-impact journals might be questioned
Interest in biomechanics
Studying @ D-MAVT, searching for BA or semester thesis
or Studying @ D-HEST, familiar with Matlab, searching for internship or master thesis.
Interest in biomechanics Studying @ D-MAVT, searching for BA or semester thesis or Studying @ D-HEST, familiar with Matlab, searching for internship or master thesis.